src/gallium/drivers/i965/brw_context.h

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a copy of this software and associated documentation files (the
   8  "Software"), to deal in the Software without restriction, including
   9  without limitation the rights to use, copy, modify, merge, publish,
  10  distribute, sublicense, and/or sell copies of the Software, and to
  11  permit persons to whom the Software is furnished to do so, subject to
  12  the following conditions:
  13
  14  The above copyright notice and this permission notice (including the
  15  next paragraph) shall be included in all copies or substantial
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #ifndef BRWCONTEXT_INC
  34 #define BRWCONTEXT_INC
  35
  36 #include "brw_structs.h"
  37 #include "brw_winsys.h"
  38 #include "brw_reg.h"
  39 #include "pipe/p_state.h"
  40 #include "pipe/p_context.h"
  41 #include "tgsi/tgsi_scan.h"
  42
  43
  44 /* Glossary:
  45  *
  46  * URB - uniform resource buffer.  A mid-sized buffer which is
  47  * partitioned between the fixed function units and used for passing
  48  * values (vertices, primitives, constants) between them.
  49  *
  50  * CURBE - constant URB entry.  An urb region (entry) used to hold
  51  * constant values which the fixed function units can be instructed to
  52  * preload into the GRF when spawning a thread.
  53  *
  54  * VUE - vertex URB entry.  An urb entry holding a vertex and usually
  55  * a vertex header.  The header contains control information and
  56  * things like primitive type, Begin/end flags and clip codes.
  57  *
  58  * PUE - primitive URB entry.  An urb entry produced by the setup (SF)
  59  * unit holding rasterization and interpolation parameters.
  60  *
  61  * GRF - general register file.  One of several register files
  62  * addressable by programmed threads.  The inputs (r0, payload, curbe,
  63  * urb) of the thread are preloaded to this area before the thread is
  64  * spawned.  The registers are individually 8 dwords wide and suitable
  65  * for general usage.  Registers holding thread input values are not
  66  * special and may be overwritten.
  67  *
  68  * MRF - message register file.  Threads communicate (and terminate)
  69  * by sending messages.  Message parameters are placed in contiguous
  70  * MRF registers.  All program output is via these messages.  URB
  71  * entries are populated by sending a message to the shared URB
  72  * function containing the new data, together with a control word,
  73  * often an unmodified copy of R0.
  74  *
  75  * R0 - GRF register 0.  Typically holds control information used when
  76  * sending messages to other threads.
  77  *
  78  * EU or GEN4 EU: The name of the programmable subsystem of the
  79  * i965 hardware.  Threads are executed by the EU, the registers
  80  * described above are part of the EU architecture.
  81  *
  82  * Fixed function units:
  83  *
  84  * CS - Command streamer.  Notional first unit, little software
  85  * interaction.  Holds the URB entries used for constant data, ie the
  86  * CURBEs.
  87  *
  88  * VF/VS - Vertex Fetch / Vertex Shader.  The fixed function part of
  89  * this unit is responsible for pulling vertices out of vertex buffers
  90  * in vram and injecting them into the processing pipe as VUEs.  If
  91  * enabled, it first passes them to a VS thread which is a good place
  92  * for the driver to implement any active vertex shader.
  93  *
  94  * GS - Geometry Shader.  This corresponds to a new DX10 concept.  If
  95  * enabled, incoming strips etc are passed to GS threads in individual
  96  * line/triangle/point units.  The GS thread may perform arbitary
  97  * computation and emit whatever primtives with whatever vertices it
  98  * chooses.  This makes GS an excellent place to implement GL's
  99  * unfilled polygon modes, though of course it is capable of much
 100  * more.  Additionally, GS is used to translate away primitives not
 101  * handled by latter units, including Quads and Lineloops.
 102  *
 103  * CS - Clipper.  Mesa's clipping algorithms are imported to run on
 104  * this unit.  The fixed function part performs cliptesting against
 105  * the 6 fixed clipplanes and makes descisions on whether or not the
 106  * incoming primitive needs to be passed to a thread for clipping.
 107  * User clip planes are handled via cooperation with the VS thread.
 108  *
 109  * SF - Strips Fans or Setup: Triangles are prepared for
 110  * rasterization.  Interpolation coefficients are calculated.
 111  * Flatshading and two-side lighting usually performed here.
 112  *
 113  * WM - Windower.  Interpolation of vertex attributes performed here.
 114  * Fragment shader implemented here.  SIMD aspects of EU taken full
 115  * advantage of, as pixels are processed in blocks of 16.
 116  *
 117  * CC - Color Calculator.  No EU threads associated with this unit.
 118  * Handles blending and (presumably) depth and stencil testing.
 119  */
 120
 121 #define BRW_MAX_CURBE                    (32*16)
 122
 123 struct brw_context;
 124
 125 struct brw_depth_stencil_state {
 126    //struct pipe_depth_stencil_alpha_state templ; /* for draw module */
 127
 128    /* Precalculated hardware state:
 129     */
 130    struct brw_cc0 cc0;
 131    struct brw_cc1 cc1;
 132    struct brw_cc2 cc2;
 133    struct brw_cc3 cc3;
 134    struct brw_cc7 cc7;
 135 };
 136
 137
 138 struct brw_blend_state {
 139    //struct pipe_depth_stencil_alpha_state templ; /* for draw module */
 140
 141    /* Precalculated hardware state:
 142     */
 143    struct brw_cc2 cc2;
 144    struct brw_cc3 cc3;
 145    struct brw_cc5 cc5;
 146    struct brw_cc6 cc6;
 147 };
 148
 149
 150 struct brw_rasterizer_state;
 151
 152
 153 struct brw_vertex_shader {
 154    const struct tgsi_token *tokens;
 155    struct tgsi_shader_info info;
 156
 157    unsigned id;
 158    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 159    GLboolean use_const_buffer;
 160 };
 161
 162
 163 struct brw_fragment_shader {
 164    const struct tgsi_token *tokens;
 165    struct tgsi_shader_info info;
 166
 167    GLboolean isGLSL;
 168
 169    unsigned id;
 170    struct brw_winsys_buffer *const_buffer;    /** Program constant buffer/surface */
 171    GLboolean use_const_buffer;
 172 };
 173
 174
 175
 176 #define PIPE_NEW_DEPTH_STENCIL_ALPHA    0x1
 177 #define PIPE_NEW_RAST                   0x2
 178 #define PIPE_NEW_BLEND                  0x4
 179 #define PIPE_NEW_VIEWPORT               0x8
 180 #define PIPE_NEW_SAMPLERS               0x10
 181 #define PIPE_NEW_VERTEX_BUFFER          0x20
 182 #define PIPE_NEW_VERTEX_ELEMENT         0x40
 183 #define PIPE_NEW_FRAGMENT_SHADER        0x80
 184 #define PIPE_NEW_VERTEX_SHADER          0x100
 185 #define PIPE_NEW_FRAGMENT_CONSTANTS     0x200
 186 #define PIPE_NEW_VERTEX_CONSTANTS       0x400
 187 #define PIPE_NEW_CLIP                   0x800
 188 #define PIPE_NEW_INDEX_BUFFER           0x1000
 189 #define PIPE_NEW_INDEX_RANGE            0x2000
 190 #define PIPE_NEW_BLEND_COLOR            0x4000
 191 #define PIPE_NEW_POLYGON_STIPPLE        0x8000
 192 #define PIPE_NEW_FRAMEBUFFER_DIMENSIONS 0x10000
 193 #define PIPE_NEW_DEPTH_BUFFER           0x20000
 194 #define PIPE_NEW_COLOR_BUFFERS          0x40000
 195 #define PIPE_NEW_QUERY                  0x80000
 196 #define PIPE_NEW_SCISSOR                0x100000
 197
 198
 199
 200 #define BRW_NEW_URB_FENCE               0x1
 201 #define BRW_NEW_FRAGMENT_PROGRAM        0x2
 202 #define BRW_NEW_VERTEX_PROGRAM          0x4
 203 #define BRW_NEW_INPUT_DIMENSIONS        0x8
 204 #define BRW_NEW_CURBE_OFFSETS           0x10
 205 #define BRW_NEW_REDUCED_PRIMITIVE       0x20
 206 #define BRW_NEW_PRIMITIVE               0x40
 207 #define BRW_NEW_CONTEXT                 0x80
 208 #define BRW_NEW_WM_INPUT_DIMENSIONS     0x100
 209 #define BRW_NEW_PSP                     0x800
 210 #define BRW_NEW_WM_SURFACES             0x1000
 211 #define BRW_NEW_xxx                     0x2000 /* was FENCE */
 212 #define BRW_NEW_INDICES                 0x4000
 213 #define BRW_NEW_VERTICES                0x8000
 214 /**
 215  * Used for any batch entry with a relocated pointer that will be used
 216  * by any 3D rendering.  Need to re-emit these fresh in each
 217  * batchbuffer as the referenced buffers may be relocated in the
 218  * meantime.
 219  */
 220 #define BRW_NEW_BATCH                   0x10000
 221 #define BRW_NEW_NR_WM_SURFACES          0x40000
 222 #define BRW_NEW_NR_VS_SURFACES          0x80000
 223 #define BRW_NEW_INDEX_BUFFER            0x100000
 224
 225 struct brw_state_flags {
 226    /** State update flags signalled by mesa internals */
 227    GLuint mesa;
 228    /**
 229     * State update flags signalled as the result of brw_tracked_state updates
 230     */
 231    GLuint brw;
 232    /** State update flags signalled by brw_state_cache.c searches */
 233    GLuint cache;
 234 };
 235
 236
 237
 238 /* Data about a particular attempt to compile a program.  Note that
 239  * there can be many of these, each in a different GL state
 240  * corresponding to a different brw_wm_prog_key struct, with different
 241  * compiled programs:
 242  */
 243 struct brw_wm_prog_data {
 244    GLuint curb_read_length;
 245    GLuint urb_read_length;
 246
 247    GLuint first_curbe_grf;
 248    GLuint total_grf;
 249    GLuint total_scratch;
 250
 251    GLuint nr_params;       /**< number of float params/constants */
 252    GLboolean error;
 253
 254    /* Pointer to tracked values (only valid once
 255     * _mesa_load_state_parameters has been called at runtime).
 256     */
 257    const GLfloat *param[BRW_MAX_CURBE];
 258 };
 259
 260 struct brw_sf_prog_data {
 261    GLuint urb_read_length;
 262    GLuint total_grf;
 263
 264    /* Each vertex may have upto 12 attributes, 4 components each,
 265     * except WPOS which requires only 2.  (11*4 + 2) == 44 ==> 11
 266     * rows.
 267     *
 268     * Actually we use 4 for each, so call it 12 rows.
 269     */
 270    GLuint urb_entry_size;
 271 };
 272
 273
 274 struct brw_clip_prog_data;
 275
 276 struct brw_gs_prog_data {
 277    GLuint urb_read_length;
 278    GLuint total_grf;
 279 };
 280
 281 struct brw_vs_prog_data {
 282    GLuint curb_read_length;
 283    GLuint urb_read_length;
 284    GLuint total_grf;
 285
 286    GLuint nr_outputs;
 287    GLuint nr_inputs;
 288
 289    GLuint nr_params;       /**< number of TGSI_FILE_CONSTANT's */
 290
 291    GLboolean copy_edgeflag;
 292
 293    /* Used for calculating urb partitions:
 294     */
 295    GLuint urb_entry_size;
 296 };
 297
 298
 299 /* Size == 0 if output either not written, or always [0,0,0,1]
 300  */
 301 struct brw_vs_ouput_sizes {
 302    GLubyte output_size[PIPE_MAX_SHADER_OUTPUTS];
 303 };
 304
 305
 306 /** Number of texture sampler units */
 307 #define BRW_MAX_TEX_UNIT 16
 308
 309 /**
 310  * Size of our surface binding table for the WM.
 311  * This contains pointers to the drawing surfaces and current texture
 312  * objects and shader constant buffers (+2).
 313  */
 314 #define BRW_WM_MAX_SURF (PIPE_MAX_COLOR_BUFS + BRW_MAX_TEX_UNIT + 1)
 315
 316 /**
 317  * Helpers to convert drawing buffers, textures and constant buffers
 318  * to surface binding table indexes, for WM.
 319  */
 320 #define SURF_INDEX_DRAW(d)           (d)
 321 #define SURF_INDEX_FRAG_CONST_BUFFER (PIPE_MAX_COLOR_BUFS)
 322 #define SURF_INDEX_TEXTURE(t)        (PIPE_MAX_COLOR_BUFS + 1 + (t))
 323
 324 /**
 325  * Size of surface binding table for the VS.
 326  * Only one constant buffer for now.
 327  */
 328 #define BRW_VS_MAX_SURF 1
 329
 330 /**
 331  * Only a VS constant buffer
 332  */
 333 #define SURF_INDEX_VERT_CONST_BUFFER 0
 334
 335
 336 enum brw_cache_id {
 337    BRW_CC_VP,
 338    BRW_CC_UNIT,
 339    BRW_WM_PROG,
 340    BRW_SAMPLER_DEFAULT_COLOR,
 341    BRW_SAMPLER,
 342    BRW_WM_UNIT,
 343    BRW_SF_PROG,
 344    BRW_SF_VP,
 345    BRW_SF_UNIT,
 346    BRW_VS_UNIT,
 347    BRW_VS_PROG,
 348    BRW_GS_UNIT,
 349    BRW_GS_PROG,
 350    BRW_CLIP_VP,
 351    BRW_CLIP_UNIT,
 352    BRW_CLIP_PROG,
 353    BRW_SS_SURFACE,
 354    BRW_SS_SURF_BIND,
 355
 356    BRW_MAX_CACHE
 357 };
 358
 359 struct brw_cache_item {
 360    /**
 361     * Effectively part of the key, cache_id identifies what kind of state
 362     * buffer is involved, and also which brw->state.dirty.cache flag should
 363     * be set when this cache item is chosen.
 364     */
 365    enum brw_cache_id cache_id;
 366    /** 32-bit hash of the key data */
 367    GLuint hash;
 368    GLuint key_size;             /* for variable-sized keys */
 369    const void *key;
 370    struct brw_winsys_buffer **reloc_bufs;
 371    GLuint nr_reloc_bufs;
 372
 373    struct brw_winsys_buffer *bo;
 374    GLuint data_size;
 375
 376    struct brw_cache_item *next;
 377 };
 378
 379
 380
 381 struct brw_cache {
 382    struct brw_context *brw;
 383    struct brw_winsys_screen *sws;
 384
 385    struct brw_cache_item **items;
 386    GLuint size, n_items;
 387
 388    GLuint key_size[BRW_MAX_CACHE];              /* for fixed-size keys */
 389    GLuint aux_size[BRW_MAX_CACHE];
 390    char *name[BRW_MAX_CACHE];
 391
 392
 393    /* Record of the last BOs chosen for each cache_id.  Used to set
 394     * brw->state.dirty.cache when a new cache item is chosen.
 395     */
 396    struct brw_winsys_buffer *last_bo[BRW_MAX_CACHE];
 397 };
 398
 399
 400 struct brw_tracked_state {
 401    struct brw_state_flags dirty;
 402    int (*prepare)( struct brw_context *brw );
 403    int (*emit)( struct brw_context *brw );
 404 };
 405
 406 /* Flags for brw->state.cache.
 407  */
 408 #define CACHE_NEW_CC_VP                  (1<<BRW_CC_VP)
 409 #define CACHE_NEW_CC_UNIT                (1<<BRW_CC_UNIT)
 410 #define CACHE_NEW_WM_PROG                (1<<BRW_WM_PROG)
 411 #define CACHE_NEW_SAMPLER_DEFAULT_COLOR  (1<<BRW_SAMPLER_DEFAULT_COLOR)
 412 #define CACHE_NEW_SAMPLER                (1<<BRW_SAMPLER)
 413 #define CACHE_NEW_WM_UNIT                (1<<BRW_WM_UNIT)
 414 #define CACHE_NEW_SF_PROG                (1<<BRW_SF_PROG)
 415 #define CACHE_NEW_SF_VP                  (1<<BRW_SF_VP)
 416 #define CACHE_NEW_SF_UNIT                (1<<BRW_SF_UNIT)
 417 #define CACHE_NEW_VS_UNIT                (1<<BRW_VS_UNIT)
 418 #define CACHE_NEW_VS_PROG                (1<<BRW_VS_PROG)
 419 #define CACHE_NEW_GS_UNIT                (1<<BRW_GS_UNIT)
 420 #define CACHE_NEW_GS_PROG                (1<<BRW_GS_PROG)
 421 #define CACHE_NEW_CLIP_VP                (1<<BRW_CLIP_VP)
 422 #define CACHE_NEW_CLIP_UNIT              (1<<BRW_CLIP_UNIT)
 423 #define CACHE_NEW_CLIP_PROG              (1<<BRW_CLIP_PROG)
 424 #define CACHE_NEW_SURFACE                (1<<BRW_SS_SURFACE)
 425 #define CACHE_NEW_SURF_BIND              (1<<BRW_SS_SURF_BIND)
 426
 427 struct brw_cached_batch_item {
 428    struct header *header;
 429    GLuint sz;
 430    struct brw_cached_batch_item *next;
 431 };
 432
 433
 434
 435 /* Protect against a future where VERT_ATTRIB_MAX > 32.  Wouldn't life
 436  * be easier if C allowed arrays of packed elements?
 437  */
 438 #define VS_INPUT_BITMASK_DWORDS  ((PIPE_MAX_SHADER_INPUTS+31)/32)
 439
 440
 441
 442
 443 struct brw_vertex_info {
 444    GLuint sizes[VS_INPUT_BITMASK_DWORDS * 2]; /* sizes:2[VERT_ATTRIB_MAX] */
 445 };
 446
 447
 448 struct brw_query_object {
 449    /** Doubly linked list of active query objects in the context. */
 450    struct brw_query_object *prev, *next;
 451
 452    /** Last query BO associated with this query. */
 453    struct brw_winsys_buffer *bo;
 454    /** First index in bo with query data for this object. */
 455    int first_index;
 456    /** Last index in bo with query data for this object. */
 457    int last_index;
 458
 459    /* Total count of pixels from previous BOs */
 460    uint64_t result;
 461 };
 462
 463
 464 /**
 465  * brw_context is derived from pipe_context
 466  */
 467 struct brw_context
 468 {
 469    struct pipe_context base;
 470    struct brw_chipset chipset;
 471
 472    struct brw_screen *brw_screen;
 473    struct brw_winsys_screen *sws;
 474
 475    struct brw_batchbuffer *batch;
 476
 477    GLuint primitive;
 478    GLuint reduced_primitive;
 479
 480    /* Active state from the state tracker:
 481     */
 482    struct {
 483       struct brw_vertex_shader *vertex_shader;
 484       struct brw_fragment_shader *fragment_shader;
 485       const struct brw_blend_state *blend;
 486       const struct brw_rasterizer_state *rast;
 487       const struct brw_depth_stencil_state *zstencil;
 488
 489       const struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
 490       const struct pipe_sampler *sampler[PIPE_MAX_SAMPLERS];
 491       unsigned num_textures;
 492       unsigned num_samplers;
 493
 494
 495       struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 496       struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 497       unsigned num_vertex_elements;
 498       unsigned num_vertex_buffers;
 499
 500       struct pipe_scissor_state scissor;
 501       struct pipe_framebuffer_state fb;
 502       struct pipe_viewport_state vp;
 503       struct pipe_clip_state ucp;
 504       struct pipe_buffer *vertex_constants;
 505       struct pipe_buffer *fragment_constants;
 506
 507       struct pipe_viewport_state viewport;
 508       struct brw_blend_constant_color bcc;
 509       struct brw_polygon_stipple bps;
 510
 511
 512
 513       /**
 514        * Index buffer for this draw_prims call.
 515        *
 516        * Updates are signaled by PIPE_NEW_INDEX_BUFFER.
 517        */
 518       struct pipe_buffer *index_buffer;
 519       unsigned index_size;
 520
 521       /* Updates are signalled by PIPE_NEW_INDEX_RANGE:
 522        */
 523       unsigned min_index;
 524       unsigned max_index;
 525
 526    } curr;
 527
 528    struct {
 529       struct brw_state_flags dirty;
 530
 531       /**
 532        * List of buffers accumulated in brw_validate_state to receive
 533        * dri_bo_check_aperture treatment before exec, so we can know if we
 534        * should flush the batch and try again before emitting primitives.
 535        *
 536        * This can be a fixed number as we only have a limited number of
 537        * objects referenced from the batchbuffer in a primitive emit,
 538        * consisting of the vertex buffers, pipelined state pointers,
 539        * the CURBE, the depth buffer, and a query BO.
 540        */
 541       struct brw_winsys_buffer *validated_bos[PIPE_MAX_SHADER_INPUTS + 16];
 542       int validated_bo_count;
 543    } state;
 544
 545    struct brw_cache cache;  /** non-surface items */
 546    struct brw_cache surface_cache;  /* surface items */
 547    struct brw_cached_batch_item *cached_batch_items;
 548
 549    struct {
 550       struct u_upload_mgr *upload_vertex;
 551       struct u_upload_mgr *upload_index;
 552
 553       /* Information on uploaded vertex buffers:
 554        */
 555       struct {
 556          unsigned stride;       /* in bytes between successive vertices */
 557          unsigned offset;       /* in bytes, of first vertex in bo */
 558          unsigned vertex_count; /* count of valid vertices which may be accessed */
 559          struct brw_winsys_buffer *bo;
 560       } vb[PIPE_MAX_ATTRIBS];
 561
 562       struct {
 563       } ve[PIPE_MAX_ATTRIBS];
 564
 565       unsigned nr_vb;           /* currently the same as curr.num_vertex_buffers */
 566       unsigned nr_ve;           /* currently the same as curr.num_vertex_elements */
 567    } vb;
 568
 569    struct {
 570       /* Updates to these fields are signaled by BRW_NEW_INDEX_BUFFER. */
 571       struct brw_winsys_buffer *bo;
 572       unsigned int offset;
 573       unsigned int size;
 574       /* Offset to index buffer index to use in CMD_3D_PRIM so that we can
 575        * avoid re-uploading the IB packet over and over if we're actually
 576        * referencing the same index buffer.
 577        */
 578       unsigned int start_vertex_offset;
 579    } ib;
 580
 581
 582    /* BRW_NEW_URB_ALLOCATIONS:
 583     */
 584    struct {
 585       GLuint vsize;             /* vertex size plus header in urb registers */
 586       GLuint csize;             /* constant buffer size in urb registers */
 587       GLuint sfsize;            /* setup data size in urb registers */
 588
 589       GLboolean constrained;
 590
 591       GLuint nr_vs_entries;
 592       GLuint nr_gs_entries;
 593       GLuint nr_clip_entries;
 594       GLuint nr_sf_entries;
 595       GLuint nr_cs_entries;
 596
 597       GLuint vs_start;
 598       GLuint gs_start;
 599       GLuint clip_start;
 600       GLuint sf_start;
 601       GLuint cs_start;
 602    } urb;
 603
 604
 605    /* BRW_NEW_CURBE_OFFSETS:
 606     */
 607    struct {
 608       GLuint wm_start;  /**< pos of first wm const in CURBE buffer */
 609       GLuint wm_size;   /**< number of float[4] consts, multiple of 16 */
 610       GLuint clip_start;
 611       GLuint clip_size;
 612       GLuint vs_start;
 613       GLuint vs_size;
 614       GLuint total_size;
 615
 616       struct brw_winsys_buffer *curbe_bo;
 617       /** Offset within curbe_bo of space for current curbe entry */
 618       GLuint curbe_offset;
 619       /** Offset within curbe_bo of space for next curbe entry */
 620       GLuint curbe_next_offset;
 621
 622       GLfloat *last_buf;
 623       GLuint last_bufsz;
 624       /**
 625        *  Whether we should create a new bo instead of reusing the old one
 626        * (if we just dispatch the batch pointing at the old one.
 627        */
 628       GLboolean need_new_bo;
 629    } curbe;
 630
 631    struct {
 632       struct brw_vs_prog_data *prog_data;
 633
 634       struct brw_winsys_buffer *prog_bo;
 635       struct brw_winsys_buffer *state_bo;
 636
 637       /** Binding table of pointers to surf_bo entries */
 638       struct brw_winsys_buffer *bind_bo;
 639       struct brw_winsys_buffer *surf_bo[BRW_VS_MAX_SURF];
 640       GLuint nr_surfaces;
 641    } vs;
 642
 643    struct {
 644       struct brw_gs_prog_data *prog_data;
 645
 646       GLboolean prog_active;
 647       struct brw_winsys_buffer *prog_bo;
 648       struct brw_winsys_buffer *state_bo;
 649    } gs;
 650
 651    struct {
 652       struct brw_clip_prog_data *prog_data;
 653
 654       struct brw_winsys_buffer *prog_bo;
 655       struct brw_winsys_buffer *state_bo;
 656       struct brw_winsys_buffer *vp_bo;
 657    } clip;
 658
 659
 660    struct {
 661       struct brw_sf_prog_data *prog_data;
 662
 663       struct brw_winsys_buffer *prog_bo;
 664       struct brw_winsys_buffer *state_bo;
 665       struct brw_winsys_buffer *vp_bo;
 666    } sf;
 667
 668    struct {
 669       struct brw_wm_prog_data *prog_data;
 670       struct brw_wm_compile *compile_data;
 671
 672       /** Input sizes, calculated from active vertex program.
 673        * One bit per fragment program input attribute.
 674        */
 675       //GLbitfield input_size_masks[4];
 676
 677       /** Array of surface default colors (texture border color) */
 678       struct brw_winsys_buffer *sdc_bo[BRW_MAX_TEX_UNIT];
 679
 680       GLuint render_surf;
 681       GLuint nr_surfaces;
 682
 683       GLuint max_threads;
 684       struct brw_winsys_buffer *scratch_bo;
 685
 686       GLuint sampler_count;
 687       struct brw_winsys_buffer *sampler_bo;
 688
 689       /** Binding table of pointers to surf_bo entries */
 690       struct brw_winsys_buffer *bind_bo;
 691       struct brw_winsys_buffer *surf_bo[PIPE_MAX_COLOR_BUFS];
 692
 693       struct brw_winsys_buffer *prog_bo;
 694       struct brw_winsys_buffer *state_bo;
 695    } wm;
 696
 697
 698    struct {
 699       struct brw_winsys_buffer *prog_bo;
 700       struct brw_winsys_buffer *state_bo;
 701       struct brw_winsys_buffer *vp_bo;
 702    } cc;
 703
 704    struct {
 705       struct brw_query_object active_head;
 706       struct brw_winsys_buffer *bo;
 707       int index;
 708       GLboolean active;
 709       int stats_wm;
 710    } query;
 711
 712    struct {
 713       unsigned always_emit_state:1;
 714       unsigned always_flush_batch:1;
 715       unsigned force_swtnl:1;
 716       unsigned no_swtnl:1;
 717    } flags;
 718
 719    /* Used to give every program string a unique id
 720     */
 721    GLuint program_id;
 722 };
 723
 724
 725
 726 /*======================================================================
 727  * brw_queryobj.c
 728  */
 729 void brw_init_query(struct brw_context *brw);
 730 void brw_prepare_query_begin(struct brw_context *brw);
 731 void brw_emit_query_begin(struct brw_context *brw);
 732 void brw_emit_query_end(struct brw_context *brw);
 733
 734 /*======================================================================
 735  * brw_state_dump.c
 736  */
 737 void brw_debug_batch(struct brw_context *intel);
 738
 739
 740 /*======================================================================
 741  * brw_pipe_*.c
 742  */
 743 void brw_pipe_blend_init( struct brw_context *brw );
 744 void brw_pipe_depth_stencil_init( struct brw_context *brw );
 745 void brw_pipe_framebuffer_init( struct brw_context *brw );
 746 void brw_pipe_flush_init( struct brw_context *brw );
 747 void brw_pipe_misc_init( struct brw_context *brw );
 748 void brw_pipe_query_init( struct brw_context *brw );
 749 void brw_pipe_rast_init( struct brw_context *brw );
 750 void brw_pipe_sampler_init( struct brw_context *brw );
 751 void brw_pipe_shader_init( struct brw_context *brw );
 752 void brw_pipe_vertex_init( struct brw_context *brw );
 753
 754 void brw_pipe_blend_cleanup( struct brw_context *brw );
 755 void brw_pipe_depth_stencil_cleanup( struct brw_context *brw );
 756 void brw_pipe_framebuffer_cleanup( struct brw_context *brw );
 757 void brw_pipe_flush_cleanup( struct brw_context *brw );
 758 void brw_pipe_misc_cleanup( struct brw_context *brw );
 759 void brw_pipe_query_cleanup( struct brw_context *brw );
 760 void brw_pipe_rast_cleanup( struct brw_context *brw );
 761 void brw_pipe_sampler_cleanup( struct brw_context *brw );
 762 void brw_pipe_shader_cleanup( struct brw_context *brw );
 763 void brw_pipe_vertex_cleanup( struct brw_context *brw );
 764
 765
 766 /* brw_urb.c
 767  */
 768 int brw_upload_urb_fence(struct brw_context *brw);
 769
 770 /* brw_curbe.c
 771  */
 772 int brw_upload_cs_urb_state(struct brw_context *brw);
 773
 774 /* brw_disasm.c */
 775 int brw_disasm (FILE *file, struct brw_instruction *inst);
 776
 777 /*======================================================================
 778  * Inline conversion functions.  These are better-typed than the
 779  * macros used previously:
 780  */
 781 static INLINE struct brw_context *
 782 brw_context( struct pipe_context *ctx )
 783 {
 784    return (struct brw_context *)ctx;
 785 }
 786
 787
 788 #define BRW_IS_965(brw)    ((brw)->chipset.is_965)
 789 #define BRW_IS_IGDNG(brw)  ((brw)->chipset.is_igdng)
 790 #define BRW_IS_G4X(brw)    ((brw)->chipset.is_g4x)
 791
 792
 793 #endif
 794